{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "The results indicated that the toxicity of SWCNT , SWCNT - PAMAM and PAMAM in C2C12 cells can be strongly correlated with the charge of the nanomaterials ."}
{"Chemical": []}